Hi,
We have a requirement where we need to upgrade OS and for Elasticsearch to run properly on new OS we need to upgrade ES version too.
Here we have two options
Option 1 -
- Upgrade Elasticsearch version on all nodes first
- Perform OS migration on nodes with upgraded Elasticsearch version. For this we will take the node out of cluster and perform OS migration,install Elasticsearch upgraded version. Here cluster will have nodes with two different OS but with same Elasticsearch version.
- Repeat step 2 for all the nodes
Option 2 -
- Take node out, perform OS migration and install upgraded Elasticsearch version.
- Put the node with new OS and upgraded Elasticsearch version into cluster. Here cluster will have nodes with two different OS and with different Elasticsearch version.
- Repeat the step 1 and 2 for all the nodes
Do you see any problem with any options, particularly option 2? Thanks